<template>
  <view class="cart-container" v-if="cart.length !== 0">
 <!-- 购物车商品列表的标题区域 -->
 <view class="cart-title">
   <!-- 左侧的图标 -->
   <uni-icons type="shop" size="18"></uni-icons>
   <!-- 描述文本 -->
   <text class="cart-title-text">购物车</text>
 </view>
 
<!-- 商品列表区域 -->
<!-- uni-swipe-action 是最外层包裹性质的容器 -->
<uni-swipe-action>
  <block v-for="(goods, i) in cart" :key="i">
    <!-- uni-swipe-action-item 可以为其子节点提供滑动操作的效果。需要通过 options 属性来指定操作按钮的配置信息 -->
    <uni-swipe-action-item :options="options" @click="swipeActionClickHandler(goods)">
      <my-goods :goods="goods" :show-radio="true" :show-num="true" @radio-change="radioChangeHandler" @num-change="numberChangeHandler"></my-goods>
    </uni-swipe-action-item>
  </block>
</uni-swipe-action>
  <!-- 空白购物车区域 -->
  <view class="empty-cart" v-else>
    <image src="/static/cart_empty@2x.png" class="empty-img"></image>
    <text class="tip-text">空空如也~</text>
  </view>

 <my-settle></my-settle>
  </view>
</template>

<script>
import badgeMix from '@/mixins/tabbar-badge.js'
import { mapState, mapMutations } from 'vuex'

export default {
  mixins: [badgeMix],
  computed: {
    ...mapState('m_cart', ['cart']),
  },
  data() {
    return {
          options: [{
            text: '删除', // 显示的文本内容
            style: {
              backgroundColor: '#C00000' // 按钮的背景颜色
            }
          }]
    }
  },
methods: {
  ...mapMutations('m_cart', ['updateGoodsState', 'updateGoodsCount', 'removeGoodsById']),
  // 商品的勾选状态发生了变化
  radioChangeHandler(e) {
    this.updateGoodsState(e)
  },
  // 商品的数量发生了变化
  numberChangeHandler(e) {
    this.updateGoodsCount(e)
  },
  // 点击了滑动操作按钮
  swipeActionClickHandler(goods) {
    this.removeGoodsById(goods.goods_id)
  }
}
  
},
 
   onShow() {
    this.setBadge()
  }
</script>

<style lang="scss">

.cart-container{
  padding-bottom: 50px;
}

.cart-title {
  height: 40px;
  display: flex;
  align-items: center;
  font-size: 14px;
  padding-left: 5px;
  border-bottom: 1px solid #efefef;
  .cart-title-text {
    margin-left: 10px;
  }
}

.empty-cart {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 150px;

  .empty-img {
    width: 90px;
    height: 90px;
  }

  .tip-text {
    font-size: 12px;
    color: gray;
    margin-top: 15px;
  }
}

</style>
